Aluminum can be used to remove the tarnish from silver: 3Ag2S(s) + 2Al(s)→ 6Ag(s) + Al2S3(s) How many grams of Al would be required to remove 0.287 g f Ag2S tarnish?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".